Monday
October 20, 2014

Homework Help: physics

Posted by lenny on Tuesday, April 24, 2012 at 4:59pm.

A hypodermic needle consists of a plunger of circular cross-section that slides inside a hollow cylindrical syringe. When the plunger is pushed, the contents of the syringe are forced through a hollow needle (also of circular cross section). If a 4.0- N force is applied to the plunger and the diameters of the plunger and the needle are 1.2 cm and 2.5 mm, respectively, what force is needed to prevent fluid flow at the needle?

A)0.17N B)0.27N C)0.43N D)0.83N E)2.7N

plzz ineed help i have no idea what im supposed to do here!

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

physics - A hypodermic syringe contains a medicine with the density of water (...
PHYSICS!!! - A hypodermic syringe contains a medicine with the density of water...
physics - A hypodermic syringe is attached to a needle that has an internal ...
science - 1) In a syringe, what happens to the air paricles when you push the ...
physics - A 0.527 kg metal cylinder is placed inside the top of a plastic tube, ...
physics - A 0.527 kg metal cylinder is placed inside the top of a plastic tube, ...
physics - A 0.527 kg metal cylinder is placed inside the top of a plastic tube, ...
science - Tyler put a cube of blue closed-cell foam in a syringe and clamped the...
Physics - A syringe has an area of 1.4 cm2 at its barrel and then narrows down ...
Physics - A syringe which has an inner diameter of 0.6 mm is attached to a ...

Search
Members